If both item slots are empty, each unused action point gives you a +2 instead of +1 towards your armor class at the end of your turn, plus 1/12 of your unarmed skill.
Required Level
12
Other Requirments
SG skill not higher than 110% and BG, EW not higher than 100% CC skill 200%
Effect
10% less chance to hit you while using close combat weapons (in both slots).